October in Rockford averages a daily high of 17.2°C with nights around 5.4°C. Expect roughly 9.4 wet days totalling 70.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Rockford is August–September.
Based on ROCKFORD GREATER ROCKFORD AIRPORT, IL US (8.7km), 1995–2024. 30 years of October data.